Electrical connection.



M. J. WOHL & H. HERTZBERG.

ELECTRICAL CONNECTION.

APPLICATION FILED xov. 26, 1907.

Patented 51111621, 1910.

2 SHEETS-SHEET 1.

WITNESSES L WCMW y 5 W ll IKE/I T088 Iarryflrzbe lvizun'cc, J Wa'kllrron'usrs M. J. WOHL & H. H-BRTZBERG.

ELECTRICAL CONNECTION.

APPLICATION FILED NOV. 26, 1907.

Patented June 21, 1910.

2 SHBETir-SKEET 2.

WITNESSES 1 QZCW mmvrons flv' yfli'rzze gf 1 22020221: J WcVzZlTTOR/IEYS UNITED STATES PATENT OFFICE.

MAURICE J. WOHL AND HARRY HERTZBERG, OF NEV YORK. N. Y., ASSIGNORS TOECONOMY ELECTRIC COMPANY. OF BROOKLYN. NEW YORK, A CORPORATION OF NEWYORK.

ELECTRICAL CONNECTION.

Specification of Letters Patent. Patented June 21, 1910.

Application filed November 26. 1907. Serial No. 403,869;

T 0 all whom it may concern:

Be it known that we, MAURICE J. Vein. and HARRY HERTZBERG, citizens ofthe United States, residing in the city of New York, boroughs ofManhattan and Brooklyn, counties of New York and Kings, respectively,and State of New York, have, invented a certain new and usefulElectrical Connection. of which the following is a specification.

This invention is an electrical connection for various purposes, such ascoupling a translating device to a socket, a ceiling or molding block, abase, and for various other purposes.

The object in view is to produce a connection which is simple inconstruction, economical to manufacture, c-ipable of easy assemblage,and etficientin operation.

The invention may be embodied in various forms of constructions, such asa socket, a plug, a combined socket and plug, a tap, a ceiling block orbase, together with other kinds of devices.

In one practical embodiment of the invention we provide a tap whereinprovision is made for connecting a translating device either in seriesor in parallel, said ta comprising complemental sections unitet by abolt or its equivalent; said sections being provided with a wiring spaceor chamber, the latter being positioned intermediate :1 socket andcertain terminal receiving chambers provided for the accommodation ofeither male posts or socket sleeves.

The invention may, also, be embodied in a plug comprising complementalsections united by a bolt, or its equivalent, said sections havingsocketsleevcs clamped between th-m, together with a conductor united toone sleeve and forming a terminal, and a metallic connecting hand inelectrical engagement with another socket sleeve and said band formingthe other terminal.

The invention further consists in certain novel constructions to behereinafter fully described. In the accompanying drawings, we haveillustrated different practical embodiments of the invention, but theconstructions shown therein are to be understood as illustrative, only,and not as defining the limits of the invention.

Figure l is an elevation with parts in section through our inventionembodied in the form of a ceiling block and adapted for use inconnection with a plug, one of the two separate parts being shown inelevation. Fig. 2 is a vertical section on the line 22 of Fig. 1. ig. 3is a plan view looking at the underside of the ceiling block shown inFigs. 1 and 2. Fig. 4 is a vertical section, partly in elevation,showing our invention embodied in a plug or tap, the part shown inelevation being one of the two parts of the plug or tap. Fig. 5 is across section on the line 55 of Fig. 4. Fig. 6 is a vertical sectionshowing the invention embodied in a tap adapted to connect incandescentlamps in series, one of the twosepa able parts being shown in elevation.Fig. 7 is an elevation of one of the two separable parts composing thedevice shown in Fig. 6 with the parts in section and arranged forconnecting incandescent lamps in parallel. Fig. 8 is a cross section onthe line 8-8 of Fig. 7. Fig. 9 is a side elevation illustrating aconnection with a plurality of plu s or taps extending from the varioussides thereof. Fig. 10 is a section illustrating a pair of cooperatingcircuit. terminals. Fig. 11 is a modification of the parts shown in Fig.10.

Referring to the construction illustrated in Figs. 1, 2 and 3, Adesignates a ceiling block which is composed of porcelain or any otherappropriate material. The block is divided vertically into complementalsections, a, a, and these sections are united solidly together inmatching relation by suitable means, such as the bolt, 7), which passesthrough the sections and is housed therein. As shown in Fig. 2, theheaded end of the bolt lies within a recess, 1), provided in one sectionas (1, whereas the nut of the bolt is within a recess, [2 formed in theother section, a, of the ceiling block.- The ceiling block is providedin its base portion with a cavity or chamber, '0, which is adapted tocontain the conductors of an electric circuit. The other end of theceiling block which is exposed to view is provided with a countersink orrecess, (1, into which is adapted to fit an end portion of a plug, B,said plug being shown in Fig. 1 as removed from the ceiling block, A,and in a position to enter-the recess, J, therein. The members, a, a, ofthe ceiling block are provided with recesses, e, e, in the meeting facesof said sections. Therecesses of one section are in a correspond ngposition to the recesses of the other section,

and when the sections are assembled, the recesscs register so as toproduce chambers adapted to receive circuit terminals. In Fig. l, thecircuit terminals are represented as socket sleeves, C, C, whicharecomposed of metal and are split or divided for a part of theirlength. The socket sleeves are placed in the matching recesses, e, e, ofthe sectional ceiling block, and when the bolt, b, is tightened, thesections, a, a, are brought into frictional engagement with said socketsleeves, whereby the socket sleeves are clamped firmly in place withinand between the sections of the ceiling block. The socket sleeves areadapted to receive the wires, 0, c leading from an external workingcircuit. The open ends of the socket sleeves face toward the recess, (1,in the exposed end of the ceiling block, and these sleeves are adaptedto receive the split spring posts, I), b, which project from the plug,B. Said plu is constructed as disclosed in a prior application filed byus on An ust 23, 1907,

Serial No. 389,771. The plug, is adapted to be placed in the recess, (Z,of the ceiling block, and the posts, 6, I)", enter the socket sleeves,C, C, whereby the plug is connected mechanically with the ceiling block,and the circuit is completed to a conductor, B, the latter beinganchored in the plu The construction of the ceiling block shown in Figs.1, 2 and 3, may be employed for a wall fixture, or for a base or stand,but, as shown, the block, A, is provided with screw holes, f, one ormore of said screw holes being in each section, a, a. The block ormember, A, may be placed against the wall or ceiling, or other surface,as in Figs. 1 and 2, and suitable screws, f, passed through the openingsf, in order to secure the block or member firmly in position, saidscrews being housed within the lug or member and bein thoroughlyinsuiated thereby from the condiictors of the circuit.

In Figs. 4 and 5, we have shown our invention embodied in a plug, G.Said plug is composed of orcelain or other nsulating material, and it isdivided longitudinally and centrally to produce the sections, g, g, Thesections are provided in their meetin faces with recesses, 12., h, whichare paralle to each other, a transverse recess, h, opening into theparallel recess, 11., and another reeess, h, the latter communicatingwith the transverse recess, [L and being dis )osed about midway betweenthe recesses, l, h. The complemcntal sections, g, g, are placed withtheir recessed surfaces in engagement, and the several recesses of onesection thus register with the corresponding recesses of the othersection. The recesses, It, It, produce chambers which contain thecircuit terminals, C, O", similar to the socket. sleeves employed in theconstruction of Fig. l, and these terminals are housed within the plugand clamped in position by the sections of said plug. The sleeve, G, isattached rigidly to a conductor, II, which is in the form of a bentmetallic stem, one end of which is fastened to the sleeve or terminal,C. The conductor, H, occupies the chamber formed by the matchingrecesses, h h, of the sections, g, 9, whereby the conductor is adaptedto extend centrally through a part of the plug, G. One end of theconductor exposed at the end face of the plug, and at this point saidconductor is furnished with a contact, 5. The plug is reduced for a partof its length thus producing a shoulder, g and on the reduced part ofthe plug is titted a corrugated band or sleeve, G, which is held inplace by a screw, 2". The conductor, H, and the sleeve, C, are inmetallic contact, whereas the corrugated sleeve, G, and the socketsleeve, C, are in metallic contact through the screw, 2'. The conductor,H, and the corrugated sleeve, G, form the exposed metallic contactswhich are adapted to complete the circuit when the plug is inserted in asuitable socket, such as I. The

socket, I, is,shown as having an internal corrugated sleeve, I, and acontact, T The cor 'ugated band, G, of the plug is adapted to be screwedinto the corrugated sleeve 1, of the socket, I, thus bringing thecontacts, G, 1*, into metallic engagement. When the plug is screwedhome, the exposed end, i, of the conductor, II, engages the contact, P,so as to complete the other lead of the circuit. The sections, 9, g, ofthe lug, G, are held together by the corru ate sleeve or band, G but, ifdesired, a bolt, such as b shown in Figs. 1 and 2, may. be employed inaddition to the sleeve or band.

In Figs. 6, 7 and S of the drawings, we have illustrated our inventionas embodicd in a combined socket and tap which is adapted to be wiredfor connecting a lamp, or other translating device, in either series orparallel. The tap, J, is composed of porcelain or other insulatingmaterial, and it is divided vertically so as to produce the complementalsections, j, j. Each section is provided with a recess, is, two parallelrccesses, Z l', and a space or chamber. m, from which chamber extendrecesses. m. Vhen the sections, j, are assembled into matching relation,the several recesses m et or register, and said sections, j, j, unitedsecurely by any suitable coupi means, such as the bolt, J. "The matcrecesses, k, produce a chamber in the in. part of the tap, which chamberis adapt: receive the inte'rnallv threaded met sleeve, K, adapted toform one terminal the reception of an ordinal" lllttllltlfihzwl lamP- K,or other translating device. l ii matching recesses, Z, Z, producechamla-rs adapted for the reception of circuit tel-11:2 nals, L, L,which are preferably in the for of spring posts, the divided ends ofsaid posts protruding beyond that end'portion of the tap opposite to thesocket, 7a. The'posts fit snuglyv in the recesses, Z, Z, and they areclamped firmly in position by frictional engagement with the members, j,3', when the latter are drawn together by the bolt, J. The socketsleeve, K, is at-one end of the tap, whereas the circuit terminals, L,L, are at the opposite end of the tap, the chamber, am, being bet-weensaid socket sleeve and the circuit terminals. This chamber is producedby the matching recesses, m, in the sections, and the parts, m, of saidrecesses produce openings which extend through the respective sides ofthe tap, as shown in Figs. 6, 7 and 8. The chamber, m, and the chamberproduced by the recesses, It, are separated by an intermediate wall, M,and in this wall are openings, 0, o and The opening, 0 is occupied by abinding post, 0, the lower headed end, p, of which is adapted to formone contact which is arranged for. engagement with a correspondingcontact of the lamp plug. The contact, 2, formed by the head of thebinding post is insulated from the closed end of the corrugated sleeve,

K, by a layer, P, of insulating material, and

the upper end of the binding post, 0, is adapted to receive a nut, p, bywhich one of the wires is adapted to be clamped into electricalengagement with saidbindln post. In the construction shown in Fig. 6, te tap is wired to connect the translating device, such as lam s, inseries, and as shown therein, we emp oy a wire, Q, and other wires, R,R. The wire, Q, is attached to the cir- -cuit terminal, L, and extendsacross the chamber, m, and through the hole, 0, whereby the lower end ofsaid wire is adapted to be "connected electrically with the corrugatedsleeve, K, thus completing the incoming lead to the lamp. The outgoinglead, R, is attached electrically to the binding 0st,

O, and this lead extends through once the openings, m, of the tap. Saidlead is shown as being twisted with the return lead, R, which extendsthrough said 0 ening, m, and is connected electrically wit the otherpost, L, whereby the two leads, R, R, are adapted to extend through oneopening and to be connected respectively with the post, 0, and theterminal, L, whereby a number of lamps may be connected in series.

The construction of Fig. 7 is similar to that of the device shown in Fi6, but the wiring is adapted to include t e incandescent lamps inparallel. As shown in said Fig. 7, the conductor, Q, extends from theterminal, L, to the socket sleeve, K, of the tap; the conductor, R,extends through-one of the openings, m, and is attached to the otherterminal, L; the conductor, Rf, is in electrical engagement with theterminal, L, and'the binding post, 0, and another conductor, Q, extendsfrom the terminal, L, to and through the opposite opening, m, of thetap. It will thus be seen that the tap is adapted to be wired withconductors extending from the terminals, L, L, to the terminals, K, O,rcspectively,-that one lead, R, extends through one side of the tap andis connected with one terminal, L, whereas the other lead, Q, extendsthrough the op posite side of the tap and is attached electrically tothe other terminal, L.

In the construction of Fig. 9, we have illustrated a connection whereina central body portion, S, is provided at one end with a socket, K, intowhich may be screwed an incandescent lamp. This connection, S, isadapted to receive the caps, s, s, at its opposite sides, whereas thetop portion of the connection may receive the p ug, 8'. These severalparts are constructed with circuit terminals, as heretofore described,for the purpose of mechanically attaching them to the connection, and ofincluding said terminals in multiple with proper contacts inside of theconnection, S.

Fig. 11 of the drawings shows another form of the circuit terminalshereinbefore described as a split post and a socket sleeve. The post, T,is reduced at one end and it is split or divided longitudinally so as toproduce the fingers, t, t. These fingers normally diverge, and neartheir ends the fingers are provided with the knobs, t. The sleeve, U, isdivided for a part of its length as at u so as to make the sleeveyieldable somewhat, and the inner ends of the socket are enlargedsomewhat as at u. The outerends of the socket in the sleeve are flaredas at u'-, in order that the ends of the expanded fingers may becompressed slightly when the fingers are thrust into the socket of thesleeve, whereby the fingersnvhen fully inserted into the socket, areadapted to expand for the enlargements, t, of said fingers to enter theenlargement, u, of the sleeve, thus connecting the post, T, to thesocket, U, in

a manner which prevents the parts from pulling apart easily. 1

A modified construction is shown in Fig. 10, wherein the post, T, issplit for its fingers to be normally expanded. The split sleeve isprovided with a tapering socket, u, the

month of which is flared for the purpose of compressing the expandedfingers during the operation of inserting said fingers into the sleeve.

Having thus fully described the invention, what we claim as new, anddesire to secure by Letters Patent is:

1. In an electrical connection, a combined socket and tap comprising a.body portion divided lengthwise and producing complemental sections,each section bein provided in one end portion with a plurality ofparallel recesses, an enlarged recess in the other with thecorresponding parts of the other section, combined with meansfor"separably clamping the sections, circuit terminals clamped in theparallel sockets at one end portion of the body portion, a sleeve withinthe enlarged recesses at the other end of the I and a contact on saidpost insulated from the intermediate chamber through the sleeve,[lateral opening formed by the radial reand a :ontact on said postinsulated from the sleeve, whereby the radial recesses of the bodyportion enable connecting wires to pass through the sides of said bodyportion and intermediate the'ends thereof.

2. In an electrical connection, a combined socket and tap comprising abody portion divided lengthwise and producing complemental sections,each section being provided in one end portion with a plurality ofparallel recesses, an enlarged recess in the other 25, end portion, achamber intermediate the aforesaid recesses, and radial recesses opening into said chamber whereby the sections when matched bring theseveral recesses and the chamber of-one member into register with thecorresponding parts of the other section, combined with means forseparably clamping the sections, spring post circuit terminals clampedin the parallel sockets at one end portion of the body portion, a sleevewithin the enlarged recesses at the other end of the body portion, abinding post extending from the intermediate chamber through the sleeve,and a plurality of connecting wires, at least one of which leads througha cesses, whereby the connecting wire may extend through a side of thebody portion and at a point intermediate the ends thereof.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

MAURICE J. \VOHL. HARRY HERTZBERG.

Vitnesses MARGARET C. POWELL, H. I. BERNHARD.

